. [Reports vol. I-XIII]. t thepickle factory, passed through 163 feet of clay and gravelbefore rock was encountered. 2. SCOTLAND COUNTY. The same indefiniteness which exists in portions of Clarkcounty concerning the distribution of the coal, prevails in all ofScotland county, no mines being operated here and the widespread and thick mantle of drift effectively covering any naturalexposures. It is possible that a judiciously distributed series of ooai indefinite,drill holes would demonstrate the extension here of the coal bedsoccurring in the adjoining counties, Davils and Van Buren, ofIowa to
. [Reports vol. I-XIII]. t thepickle factory, passed through 163 feet of clay and gravelbefore rock was encountered. 2. SCOTLAND COUNTY. The same indefiniteness which exists in portions of Clarkcounty concerning the distribution of the coal, prevails in all ofScotland county, no mines being operated here and the widespread and thick mantle of drift effectively covering any naturalexposures. It is possible that a judiciously distributed series of ooai indefinite,drill holes would demonstrate the extension here of the coal bedsoccurring in the adjoining counties, Davils and Van Buren, ofIowa to the north. 54 PRELIMINARY REPORT ON COAL. Coal at Biad-bnrii9 drift. 3. SCHUYLER COUNTY. PEODUCTION IN 1891 280 TONS. About three miles west of Coatsville, in the ravines tributary tothe Chariton river valley, coal is mined on a small scale for localuses, at a number of small pits. At Bradburns drift, near themiddle of the north line of section 34 of township 67 N. 16 following section was measured : liimeetone, dark-colored (thicker inplaces.) Clay, slaty, ( Clod.)Shale, black, fissile. Coal. Clay parting. Coal. Shale, Fire Clay. Limestone (Bed rock.) Fig. 16. Section of coal bedat Bradburns Drift. Coal at HilltownIowa. Lower beds. This bed of coal is here faulted (see p. 39) to an injuriousextent, a very considerable fraction of the face being biokenby this action, causing much loss and dead work. The coal isalso reported to slack readily. The overlying limestone makesa good roof, and, when the coal and intervening shale and clayare removed, an entry of excellent height for all travellingpurposes is obtained. This bed of coal is considered by Norwood ^ to be the same asthat mined a few miles north, at Hilltown, Iowa; here theaggregate thickness is only little over three feet, but the coal isless faulted and is harder. In the eastern portion of the countydenudation has removed this bed of coal, and the country iscovered by a thick layer of drif
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